Boolean - Int conversion in Kotlin

You can write an extension function of Boolean like

fun Boolean.toInt() = if (this) 1 else 0

writing a function for this task for every project can be a little tedious. there is a kotlin function that you can use it to achieve this.

with compareTo if variable is greater than input it will output 1, if equal to it will output 0 and if less than input it will output -1

so you can use it for this task like this:

v.compareTo(false) // 0 or 1

You could extend Boolean with an extension property in this case:

val Boolean.int 
     get() = if (this) 1 else 0

Now you can simply do true.int in your code

Making a request to an API that returns 0 or 1 for a field that should clearly be true/false. At the same time, I also make other requests to similar APIs for the same type of field that give me back true/false. I'd like to share the code that handles that response from all APIs.

In this case I think using converter of your mapping library (jackson, etc) will be best option.

In plain Kotlin you can use extension function/property for this purpose.

No there is no way to convert. you only can convert by following below code

 val output = if (input) 1 else 0

use this :

val Boolean?.int
    get() = if (this != null && this) 1 else 0